Plant polyphenols with antioxidant properties

OPC (Oligomeric proanthocyanidins) are secondary plant compounds from the flavonoid group, naturally occurring in grape seeds and pine bark. They belong to the polyphenols, which are known for their strong antioxidant effects. In nature, they act as a protective system for plants, safeguarding them from oxidative stress caused by external influences such as UV radiation or pollutants – secondary plant compounds that serve as natural defenses against oxidative stress. (García-Pérez et al., 2025). We want to make targeted use of these protective mechanisms in our product.